j.u.JavatimeTest fails when tested together with jdk/test/closed. It appears the default timezone is being changed to PST (the machine setup is America/Los_Angeles) during the testing. j.u.JavatimeTest itself has problem to deal with such timezone alias name for round-trip conversion. While we are tracing down which closed test change the default tz without resetting it back to original one, I'm updating JavatimeTest to fix this failure.